mysqli::close
mysqli_close
(PHP 5, PHP 7, PHP 8)
mysqli::close -- mysqli_close — Closes a previously opened database connection
Description
Object-oriented style
public mysqli::close(): bool
Procedural style
mysqli_close(mysqli $mysql): bool
Closes a previously opened database connection.
Open non-persistent MySQL connections and result sets are automatically closed when their objects are destroyed. Explicitly closing open connections and freeing result sets is optional. However, it's a good idea to close the connection as soon as the script finishes performing all of its database operations, if it still has a lot of processing to do after getting the results.
Parameters
-
mysql -
Procedural style only: A mysqli object returned by mysqli_connect() or mysqli_init()
Return Values
Returns true on success or false on failure.
Examples
Example #1 mysqli::close() example
Object-oriented style
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
$result = $mysqli->query("SELECT Name, CountryCode FROM City ORDER BY ID LIMIT 3");
/* Close the connection as soon as it's no longer needed */
$mysqli->close();
foreach ($result as $row) {
/* Processing of the data retrieved from the database */
}
Procedural style
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = mysqli_connect("localhost", "my_user", "my_password", "world");
$result = mysqli_query($mysqli, "SELECT Name, CountryCode FROM City ORDER BY ID LIMIT 3");
/* Close the connection as soon as it's no longer needed */
mysqli_close($mysqli);
foreach ($result as $row) {
/* Processing of the data retrieved from the database */
}
Notes
Note:
mysqli_close() will not close persistent connections. For additional details, see the manual page on persistent connections.
See Also
- mysqli::__construct() - Open a new connection to the MySQL server
- mysqli_init() - Initializes MySQLi and returns an object for use with mysqli_real_connect()
- mysqli_real_connect() - Opens a connection to a mysql server
- mysqli_free_result() - Frees the memory associated with a result
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/mysqli.close.php
